Dynamic generation of standard chemical vapor mixtures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70565813%3A_____%2F22%3AN0000020" target="_blank" >RIV/70565813:_____/22:N0000020 - isvavai.cz</a>

Výsledek na webu

<a href="https://nbc2022.org/programme/" target="_blank" >https://nbc2022.org/programme/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic generation of standard chemical vapor mixtures

Popis výsledku v původním jazyce

Preparation of various gas standards or mixtures of precise composition and concentration is still an urgent topic in general chemical practice. The field of gas standards application is relatively wide, ranging from basic calibrations of analytical instrumentation, air quality monitoring, catalytic and adsorption studies, chemical synthesis, toxicology, medicinal and pharmacological applications to special areas like the research and development of new personal protective equipment and testing of its efficiency against the action of toxic and highly toxic chemical compounds. This contribution describes the modified method of chemical vapor mixtures preparation based on the principle of controlled and defined liquid phase evaporation. Developed generator device (GCM) combines precise dosing of the liquid phase using gas-tight syringes followed by its quantitative evaporation and mixing with diluent gas inside a specially designed tempered evaporation chamber. GCM can produce precise, stable, and repeatable concentrations of VOC and SVOC chemical vapor mixtures. Presented results demonstrate the application of the GCM coupled to GC and FTIR instrumentation for the testing and evaluation of new barrier, textile and filtration materials used for the fabrication of chemical protective equipment.

Název v anglickém jazyce

Dynamic generation of standard chemical vapor mixtures

Popis výsledku anglicky

Preparation of various gas standards or mixtures of precise composition and concentration is still an urgent topic in general chemical practice. The field of gas standards application is relatively wide, ranging from basic calibrations of analytical instrumentation, air quality monitoring, catalytic and adsorption studies, chemical synthesis, toxicology, medicinal and pharmacological applications to special areas like the research and development of new personal protective equipment and testing of its efficiency against the action of toxic and highly toxic chemical compounds. This contribution describes the modified method of chemical vapor mixtures preparation based on the principle of controlled and defined liquid phase evaporation. Developed generator device (GCM) combines precise dosing of the liquid phase using gas-tight syringes followed by its quantitative evaporation and mixing with diluent gas inside a specially designed tempered evaporation chamber. GCM can produce precise, stable, and repeatable concentrations of VOC and SVOC chemical vapor mixtures. Presented results demonstrate the application of the GCM coupled to GC and FTIR instrumentation for the testing and evaluation of new barrier, textile and filtration materials used for the fabrication of chemical protective equipment.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10406 - Analytical chemistry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů